The robbery at the Berliner Volksbank was only discovered Monday when smoke was seen coming from a garage near to the bank in Berlin's Steglitz district, DW
reported. A 100ft long, 3ft wide tunnel was found leading from the underground car park to the bank vaults.
According to the Mirror
the bank robbers tunnelled into the vault on Friday after the bank closed for business, using silenced drills to penetrate the vault. Once the strongroom was breached cash and valuables worth more than €10 million were stolen from around 100 safety deposit boxes.
Berlin police spokesman Thomas Neuendorf said the elaborately constructed tunnel was "very professional" Sky News
reported. He estimated it had taken weeks, or even months, to construct.